⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-24)
🏭 Industrial Electrical Conversion · Three-Phase & Single-Phase

30 kVA to Amps at 400V Three-Phase AC (IEC Europe)

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 30 kVA on a 400V Three-Phase AC (IEC Europe) circuit.

Line Current (0.85 PF)43.3 AAt 1.0 PF: 43.3 A
Active / Apparent Power25.5 kW30.0 kVA · 15.8 kVAR
Recommended Breaker60 A (NEC)45 A (IEC Nominal)
Recommended Copper Wire8 AWGIEC Metric: 10 mm²

Engineering Breakdown for 30 kVA at 400V

Input Rating30 kVA (400V Three-Phase AC (IEC Europe))
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)43.3 Amps
Amperage at 1.00 Power Factor (Resistive Load)43.3 Amps
Real Power (kW / Watts)25.5 kW (25,500 W)
Apparent Power (kVA) & Reactive Power (kVAR)30.0 kVA / 15.8 kVAR
Equivalent Mechanical Horsepower (HP)34.2 HP
NEC 125% Continuous Circuit Breaker60 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)8 AWG (NEC) / 10 mm² (IEC)

Frequently Asked Questions

How many amps is 30 kVA at 400V (3-Phase)?

At 400V Three-Phase AC (IEC Europe), 30 kVA equals 43.3 Amps at an industrial power factor of 0.85 (or 43.3 Amps at unity power factor 1.0).

What size breaker and wire is needed for 30 kVA at 400V?

For 43.3A continuous load, NEC requires a 125% rated breaker of 60A with 8 AWG copper conductors, while IEC standard sizing uses a 45A breaker with 10 mm² copper cable.